Stumbo, 47, who has been a clerk for 16 years, defeated Jamnick in 17 out of the township's 20 precincts. Stumbo received 3,011 votes, and Jamnick had 2,317.

Stumbo has been at odds with Jamnick over how to run the township since Jamnick was elected four years ago. Stumbo said residents voted for her because of her reputation as a public servant who fights for taxpayers.

The difference between the two has been over leadership style, not policy issues.

"I want to bring unity to the township board and the community," Stumbo said.

She credited her campaign manager and relative T.R. Stumbo for the hard-fought win. She said she circulated fliers, knocked on doors, ran advertisements and encouraged her supporters to vote.

In the clerk's race, County Commissioner Karen Lovejoy Roe defeated Trustee David Ostrowski for Stumbo's job.

Jamnick, a former township treasurer and two-term member of the state House of Representatives, said she was disappointed by the results.

"The people have spoken," she said by phone. "They asked for a change, and they have got it."

No Republican or Independent filed to be on the ballot in November, making the primary the deciding election in the mostly Democratic township. About 5,300 of the township's 35,000 residents cast votes Tuesday.

In the clerk's race, Lovejoy Roe received 3,113 votes, while Ostrowski received 2,090 votes. Lovejoy Roe couldn't be reached for comment Tuesday night.

"The voters spoke, and they have made their decisions," Ostrowski said.

The three incumbents trustees - Jean Hall Currie, Dee Sizemore and Stan Eldridge - and newcomer Mike Martin won the most votes in the trustee race. Currie received 2,838, Sizemore 2,774, Eldridge 2,349 and Martin 2,234. The board includes four trustees, the clerk, treasurer and supervisor.